Vapor-burner



y J. F. MACKAY. VAPOR BURNER.

APPLICATION FILED OCT. I3, I9I9.

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1. F. MAcKAY.

- VAPOR BURNER.

APPLICATION FILED OCT- l'3. 1919.

1,389,259. I mallteam. 30,1921.;

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UNITED STATES PATENT OFFICE.A

JOHN IVE. MACKAY, OF LANCASTER, PENNSYLVANIA.

` VAPOR-BURNER.

To all whom t may concern:

Be it known that I, JOHN F. MACKAY, ay

citizen of the United States, residing at Lancaster, county of Lancaster, lStateof Pennsylvania, have invented certain new and useful Improvements in Vapor-Burners, where` of the following is a specification, reference being had tothe accompanying drawings. The invention relates to vapor burners designedfor the consumption of hydrocarbon oils, and more specifically to that classification of such burners especially adapted for use in connection with poultry broeders, or similar apparatus, although not necessarily restricted to such use alone.

The primary object of the invention is to provide a burner of the above character,

, which is absolutely efficient in effecting perfect combustion; proof against the action of drafts; and of such simplicity of design as to be perfectly safe in operation, and compara tively cheap of manufacture.

The organization whereby I attain the advantages above pointed out will be more readily understood from the description which follows, and its novel characteristics elucidated in the appended claims.

In the accompanying drawings, Figure I. is a plan view of a vapor burner conveniently embodying my invention.

Fig. II. is an elevation of the same.

Fig. III. is an axial sectional elevation through the burner. y

Fig. IV. is a plan sectional v-'iew as viewed in the direction of the arrows IV-IV. in Fig. III. n

In the form herein shown, the structure comprises a hollow base member 1, preferably in the form of an inverted truncated cone, and recessed at the top as shown at 2, to form a seat for an annular trough mem ber 3, which is held fixed within its-seat by screws P-f1. The annular space 5, about the fuel trough proper, which is indicated at 6, communicates with the interior of the base member 1, through a series of openings 7. Liquid fuel is supplied by means of a pipe 8, entering a boss 9, of the trough member 8, as best seen in Fig. III. The trough is semioval in cross sectional configuration, and within it, is located an annular priming wick 10, preferablyI of asbestos or like material. Said wick is held in a central position concentrically with respect to the trough by a series of inwardly extending lugs 11, disposed in alternation at opposite sides of the Specification of Letters Patent. Patented Ang. 30, 1921. Application ined october 13, 1919.

Serial N0. 330,362.

trough. Said lugs are traversed vertically by ducts 12, which serve as air-jets to supply the l necessary quantity of oxygen to the wick during priming.

VSuperimposed upon the trough member 3, is a flue structure comprehensively indicated at 15, and comprising two spaced, concentric formed between them communicates directly with the fuel trough. The lower edges of the shells 16 and 17, are machined to form shoulders 20, and 21, respectively, which fit over correspondingly machined annular ridges 22, 23, on the trough member 3, so that these vassociated parts are normally held against relative displacement. The flue passage 19, is open to the exterior at the top, while the space within the inner shell is covered as at 24;, occluded or the cover being integral with the shelf 16 and extended outward therefrom as a fiaring peripheral fiange 25, which overhangs the open flue top, and is serviceable in a manner to be later described.

At equally spaced points about its periphery, the flared portion 25 of the cover 24 is provided with integral outward-extending radial arms 26, which are recessed at 27, to receive the inward turned tabs 28, of a suspended guard apron 29. Thus the apron 29 is readily removable while, at the same time, it is kept from shifting by its definite antiturning engagement with the recessed ends of the arms.

In order that the flue superstructure 15, may be temporarily raised to permit access to the wick in priming, an elevating device has been provided in the form of a rod 30, extending axially through the burner, and having its upper end engaged within a central socket 31, inv the` cover 24k of the inner shell 16. rIhe rod is suitably supported by a bearing 32, forming a part of the trough member 3, and the super-structure is held alined with respect to said rod through the assistance of a cross web 33, spanning the inner shell 16. At its lower end, the rod 30 is bent laterally at right angles, and the eX- tension 35, thus formed protrudes through an inclined slot 36, (Fig. II.) in the wall of the base member 1, to afford attachment for a suitable finger knob 37. The upper terminal end of the slot 36, is recessed orv notched as at 38, and adapted to temporarily engage the extension 35, of the rod 30, when raised to its elevated position. From the above, it will be seen that as the finger knob 3T, is grasped and turned to the right, when considered with respect to Fig. Il, its extension 35 will ride along the lower edge of the slot 36, and cause an axial upward shifting of the rod, whereby the flue structure will be elevated with respect to the trough member This shifted position may be temporarily maintained by engaging the rod within the notch 3S. of the slot.

ln operation, sufficient of the liquid fuel is supplied to the trough to saturate the wick, and at the same time provide a small amount of surplus. The flue structure 15, together with its appendage is then raised in the manner already explained, whereupon the wick may be readily ignited. After ignition the flue structure is again lowered, the air necessary to support the combustion being supplied through the jets 12, from the interior of the base member 1. The latter is in turn supplied through the openings 7, in the trough member 3, and also partly through the cam slot 36. As soon as the flue structure is heated sufficiently to effect vaporization of the fuel, supply of the latter is thereafter so regulated that combustion may be maintained independent of the cooperation of the wick. ln order that combustion be perfect, during the normal operation of the device, an adequate supply of air is at all times automatically maintained by induction through the perforations of the cylindrical shells 16, and 17, said perforations being so proportioned and disposed, that the influx is uniform at both the inside and outside periphery of the flue structure.

Referring for anioment to Fig. IH., it will be seen that a portion of the necessary supply is drawn from the interior of the base member 1, and enters the combustion flue 19, through the perforations in the cylinder 1G, while at the same time a proportionate supply is drawn directly from the exterior through the interval or clearance space between the lower end of the apron, and the top of the base member 1, the latter supply entering the flue channel through the perforations in the outer shell 17. During operation, the apron serves to protect the flame against the effects of drafts, and when theburner is employed in brooders,

said apron is further functional as a guard in preventing Vthe chicks vfrom coming into direct contact with anyV77 of the hot portions ofthe device. As the combustion proceeds, the rising heated gases are directed laterally outward from the top of the flue channel 19 by the fiare'd peripheral overhang of the structure 15.

Having thus described my invention, I claim: Y

i 1. ln a burner of the characterdescribed, the combination of an annular fuel trough; a flue structure superimposedl upon said trough, and comprising two integrally united, spaced, concentric cylinders, the interval between the lat-ter forming an annular open topy fine communicating with said trough; land a. flaring peripheral extension projecting from the inner of said cylinders, and over-hanging the top of the flue, said extension being adapted to deflect the heated combustion gases laterally outward.

2. ln a burner of the character described, the combination of a flue structureV with arms extending outward from the upper portion thereof and an annular open-top combustion flue therein; and a removable guard apron surrounding said flue structure and suspended from said arms in antiturning engagement with them. i

3. A flue structure for a burner ofthe character described comprising cylinders arranged one within the other, with an annular combustion flue between them; a cover integral with one of said cylinders extending outward over the top 0f said combustion flue, to deflect` outward the heated gases therefrom; and a guard apron surrounding the upper portion of Hue structure. l'

4. A unitary flue structure for a burner of the character described comprising cylinders arranged one within the other, with an annular combustion flue between them; a cover integral with one of said cylinders extending outward over the top of said combustion flue, to deflect outward the heated gases therefrom; and means carried by said cover for removably supporting a guard apron about said flue structure.

In testimony whereof l have hereunto signed my name at Philadelphia, Fennsylvania, this third day of October', 1919.

JOHN F. MACKAY.

lVitnesses:

JAMES H. BELL, E. L. FULLnR'roN. 

